menu1: language selection
menu2: English menu (play movie, trailer, chapters, extras)
menu3: German menu (Filmstart, Trailer, Kapitel, Extras)
menu4: Hungarian menu (I don't know any Hungarian word except for CHEERS)
menu5: Czech menu (I know as much Czech as Hungarian)
you select to play the movie from menu 2,3,4 or 5
after the movie has finished (or if you press MENU anytime) you are back in 2,3,4 or 5

That's actually even easier. The first language selection menu takes you to whichever menu you want. From each of those language menus, you put the VTS command between the menu and the movie. After pressing the play button, the VTS forces the audio selection. There is a "Return to menu" command that takes you back to the last menu you were at, so when the movie is done (or you press "Menu") you go back to the language you started from.